Tim Melia needed to make just one save, but it came late in the game as Sporting Kansas City played to a 0-0 tie with the Seattle Sounders on Saturday night.
Chad Barrett scored his first two goals of the season and the Seattle Sounders beat the Vancouver Whitecaps 2-0 on Saturday.
Kei Kamara scored two goals and the Columbus Crew beat Seattle 3-2 on Saturday night for their first home victory against the Sounders.
Obafemi Martins scored twice, Clint Dempsey had a goal and an assist and the Seattle Sounders beat New York City FC 3-1 on Sunday night.
When Clint Dempsey returned to Major League Soccer, his debut with Seattle came against Portland.
The Sounders and Timbers renew their heated rivalry Sunday at CenturyLink Field.
Having committed to reach 24 teams by the end of the decade, Major League Soccer intends to develop additional expansion plans within six months.
Federal Way's Lamar Neagle scored twice in the first half, Obafemi Martins added a stunning goal in the second and the Seattle Sounders beat the Colorado Rapids 3-1 on Saturday night.
Alan Gordon scored midway through the first half and the Los Angeles Galaxy held off the Seattle Sounders 1-0 on Sunday to snap a two-game scoreless stretch.
Obafemi Martins scored his third goal of the season, spinning around a defender to beat Houston goalkeeper Tyler Deric, and the Seattle Sounders beat the Dynamo 1-0 on Saturday night despite playing the final 35 minutes with just 10 men.
It didn't take long for Seattle Sounders midfielder Cristian Roldan to find fame. He was featured in this Adidas commercial as a kid.
FC Dallas played with 10 men for the majority of the night, the Seattle Sounders failed to capitalize and the match ended in a scoreless draw Saturday night.
U.S. captain Clint Dempsey will miss exhibition games at Denmark and Switzerland because of a strained right hamstring. He is expected to be sidelined two to three weeks.
Andy Rose, who subbed into the game to start the second half, scored in the 56th minute on Tuesday night and the Seattle Sounders rallied to tie Club Tijuana 2-2 in an international friendly.
Clint Dempsey, Jozy Altidore and Michael Bradley highlight the U.S. team chosen by Jurgen Klinsmann on Sunday for exhibition matches against Denmark and Switzerland.